... 错综复杂 tangled and complicated (idiom) 打杂 to do unskilled work; to do odd jobs 烦杂 muddled; many and disorderly ...
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to do unskilled work
做不熟练的工作
以上为机器翻译结果，长、整句建议使用 人工翻译 。
They do other unskilled work around rigs like cleaning up spilled oil, moving pipes to and from trucks and guiding cranes that move loads around decks.
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